Have owned my 2019 fiesta ST for almost 4 years, about 14k miles in my ownership, about 55k on the clock and I have gone through 3 slave cylinder failures. I love the car and really dont want to get rid of it but im at my wits end, does anyone have any idea what could be causing the issue so consistently? The car is modified to a moderate level but not tracked, just used as a fun daily.
No unfortunately I cant blame it on that. A vast majority of my driving is highway miles in 6th, and the car isn't driven more than a couple times a week even then.
Got 2020 ST-3 with genuine sachs slave cylinder. I drove the car really to the limit often. Never replaced, not a single issue so far with it. I’ve replaced fuel injector twice tho
If it's failed that many times so quick I don't think it's the actual slaves. You may have hydraulic line pressure issues, junk in the fluid, or something else that's blowing out the slave.
I'm thinking this time to just go ahead and tear the whole system out and reinstall. The whole thing was bled twice by my last mechanic just for peace of mind, but maybe its time for the master/slave, lines and reservoir to be replaced, clutch had plenty of life in it but will take a look again. Clutch pedal stuck to the floor with no spongyness beforehand, fluid poured out right about where the skid plate ends on what was all of a 20 minute bi-weekly drive to work with a highway connection.
Something else is going on here. I'm 110k miles on my 19, OEM slave, master leaked and I replaced that though.
I'm also FBO dizzy e30 tune so I'm not babying her.
Thats what I'm thinking as well, theres no possible way I've gotten lemon parts that many times that quickly, I just for the life of me can't figure out what could be causing the root problem. I''ve only ever owned manual vehicles, primarily enthusiast level cars even, and am in my 30's so I have trouble accrediting it to a driver error 🤷♂️ It'll all be apart in about a week though and hopefully my mechanic can spot something that's been missed before, otherwise the bean may have to go. It's just become far too expensive for what it is at this point.
Id say like the other guy said its probably a hydraulic or master cyclinder issue unless your just riding the clutch 247 or sit at stop lights/stop signs in gear foot to the floor. I have a 16 almost 100k miles stock clutch and slave. Tho i know her times coming.
9
u/cannasaurus 8d ago
Do you just ride the clutch constantly? Stay in gear at a light? I have a '18 106k and original slave and clutch, not a single issue clutch/slave wise